Now old, ill, poor, and largely forgotten, William Freise-Greene was once very different. As young and handsome William Green he changed his name to include his first wife's so that it sounded more impressive for the photographic portrait work he was so good at. But he was also an inventor and his search for a way to project moving pictures became an obsession that ultimately changed the life of all those he loved.
| Camera | Jack Cardiff | Director of Photography |
| Production | Ronald Neame | Producer |
| Directing | John Boulting | Director |
| Writing | Eric Ambler | Screenplay |
| Editing | Richard Best | Editor |
| Camera | George Minassian | Camera Technician |
| Sound | Herbert J. Bird | Sound Mixer |
| Sound | Harold V. King | Sound Director |
| Camera | Joan Bridge | Other |
| Production | John Redway | Casting Director |
| Art | John Bryan | Production Design |
| Directing | Cliff Owen | Assistant Director |
| Sound | Muir Mathieson | Conductor |
| Costume & Make-Up | Julia Squire | Costume Designer |
| Production | Bob McNaught | Production Manager |
| Camera | Arthur Ibbetson | Assistant Camera |
| Crew | R. Howard Cricks | Thanks |
| Costume & Make-Up | Nora Bentley | Hairdresser |
| Writing | Ray Allister | Book |
| Art | T. Hopewell Ash | Art Direction |
| Directing | Max Varnel | Assistant Director |
| Costume & Make-Up | Harold Fletcher | Makeup Artist |
| Sound | William Alwyn | Original Music Composer |